activity
20232026
most citedA short tutorial on Wirtinger Calculus with applications in quantum information

3 citations · 4 across the 4 of their papers we have counts for

collaborators

5 papers

quant-ph2026

Quantum Tilted Loss in Variational Optimization: Theory and Applications

Yixian Qiu, Josep Lumbreras, Xiufan Li +1

Variational quantum algorithms (VQAs) are leading strategies for using near-term quantum devices, with a well-studied bottleneck being their trainability. Standard expectation-valu…

quant-ph2025

Quantum Learning with Tunable Loss Functions

Yixian Qiu, Lirandë Pira, Patrick Rebentrost

Learning from quantum data presents new challenges to the paradigm of learning from data. This typically entails the use of quantum learning models to learn quantum processes that…

cs.LG2024

Quantum Algorithm for Sparse Online Learning with Truncated Gradient Descent

Debbie Lim, Yixian Qiu, Patrick Rebentrost +1

Logistic regression, the Support Vector Machine (SVM), and least squares are well-studied methods in the statistical and computer science community, with various practical applicat…

quant-ph2024★ 1 cited

The Quantum Esscher Transform

Yixian Qiu, Kelvin Koor, Patrick Rebentrost

The Esscher Transform is a tool of broad utility in various domains of applied probability. It provides the solution to a constrained minimum relative entropy optimization problem.…

quant-ph2023★ 3 cited

A short tutorial on Wirtinger Calculus with applications in quantum information

Kelvin Koor, Yixian Qiu, Leong Chuan Kwek +1

The optimization of system parameters is a ubiquitous problem in science and engineering. The traditional approach involves setting to zero the partial derivatives of the objective…